986591045 has 18 divisors (see below), whose sum is σ = 1302341586. Its totient is φ = 716958880.

The previous prime is 986591033. The next prime is 986591059. The reversal of 986591045 is 540195689.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 211469764 + 775121281 = 14542^2 + 27841^2 .

It is not a de Polignac number, because 986591045 - 2⁴ = 986591029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 771947 + ... + 773223.

Almost surely, 2^986591045 is an apocalyptic number.

It is an amenable number.

986591045 is a deficient number, since it is larger than the sum of its proper divisors (315750541).

986591045 is an equidigital number, since it uses as much as digits as its factorization.

986591045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2581 (or 1293 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 47.

The square root of 986591045 is about 31410.0468799395. The cubic root of 986591045 is about 995.5102203808.

The spelling of 986591045 in words is "nine hundred eighty-six million, five hundred ninety-one thousand, forty-five".